CN105372866A - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
- Publication number
- CN105372866A CN105372866A CN201510865858.9A CN201510865858A CN105372866A CN 105372866 A CN105372866 A CN 105372866A CN 201510865858 A CN201510865858 A CN 201510865858A CN 105372866 A CN105372866 A CN 105372866A
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- Prior art keywords
- black matrix
- layer
- display area
- matrix layer
- array base
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
Abstract
The invention discloses a liquid crystal display panel comprising an array substrate, an opposite substrate, frame sealant, a liquid crystal layer, and a black matrix layer. The array substrate has a display area and a non-display area, and the display area includes multiple active components and a color photoresist layer. The opposite substrate is arranged above the array substrate. The frame sealant is arranged between the array substrate and the opposite substrate, and surrounds the non-display area. The liquid crystal layer is configured between the array substrate and the opposite substrate. The black matrix layer is arranged on the array substrate, and is distributed corresponding to the display area and the non-display area. The liquid crystal display panel is characterized in that at least the black matrix layer distributed in the non-display area has a thickness smaller than or equal to 2 microns. Thus, the thickness of the black matrix layer is reduced, the depth of the via on the array substrate is reduced, and bubbling in the via is prevented.
Description
Technical field
The present invention relates to a kind of lcd technology, particularly relate to a kind of display panels solving liquid crystal panel surrounding generation bubble.
Background technology
Traditional display panels is made up of colored optical filtering substrates (ColorFilterSubstrate), thin-film transistor array base-plate (TFTArraySubstrate) and the liquid crystal layer (LiquidCrystalLayer) be configured between this two substrates.Now, more propose and color light resistance layer is made in (ColorfilteronArray on thin-film transistor array base-plate, COA) technology, and further propose and also black matrix is made in (BlackmatrixonArray on thin-film transistor array base-plate, BOA) technology, wherein BOA substrate and another subtend substrate in batch mainly stand by BOA technology, and between two substrates, insert liquid crystal molecule formation liquid crystal layer, make frame adhesive curing to be sealed between two substrates by liquid crystal molecule, to form display panels.
But, refer to Fig. 1, in the display panels 10 with BOA substrate, injection liquid crystal layer 13 to two substrates 11, when 12, it is other that liquid crystal molecule in liquid crystal layer 13 must diffuse to described frame glue 14 by capillary force, and in diffusion process, capillary force can change to some extent along with the position difference at liquid crystal molecule place.Such as, when liquid crystal molecule diffuses to position L ' by AA position, viewing area L, constant substantially with the change of the contact area of plurality of groups of substrates of thin-film transistor 11 and colored optical filtering substrates 12 in diffusion process.Only, when liquid crystal molecule diffuses to non-display area BA, because the gap A1 of plurality of groups of substrates of thin-film transistor 11 between viewing area AA and colored optical filtering substrates 12 is less than the gap A2 of plurality of groups of substrates of thin-film transistor 11 between non-display area BA and colored optical filtering substrates 12, the contact area in the space of liquid crystal molecule and non-display area BA expands, and then cause capillary force to decline, liquid crystal molecule cannot insert perforation (via) H ' in contact non-display area BA fully, and easily produces bubbles of vacuum 20 at the perforation H ' place of described plurality of groups of substrates of thin-film transistor 11.
Moreover as shown in Figure 1, in the display panels 10 of BOA type, its color light resistance layer 111 is arranged at the viewing area AA of display panels 10.Be made in after on thin-film transistor array base-plate 11 at black matrix 15, viewing area AA chromatic colour photoresist layer 111 is stacking with black matrix 15, and two substrates 11, liquid crystal layer 13 gap (cellgap) A1 between 12 is less, and liquid crystal molecule ratio is easier to diverging flow.But for having the display panels 10 of BOA substrate, black matrix 15 stack thickness of viewing area AA is thicker, make perforation H degree of depth D1 darker, add that the diffusion of liquid crystal molecule is slack-off gradually, be very easy to cause liquid crystal molecule in the AA perforation H of viewing area to fill up, cause in perforation H and produce bubble 20.And relatively non-display area BA, non-display area BA do not have the stacking of color light resistance layer 111, therefore liquid crystal layer 13 gap A2 between two substrates 11,12 is comparatively large, and liquid crystal molecule spreads slower comparatively speaking.And the black matrix 15 of non-display area BA also needs to possess perforation H ' designs the connection supplying peripheral circuit, when liquid crystal molecule diffuses to non-display area BA, two substrates 11, it is slower that liquid crystal layer 13 gap A2 between 12 causes more greatly liquid crystal molecule to spread, liquid crystal molecule cannot be inserted in perforation H ' fully, causes producing bubble 20 in perforation H '.
In addition, viewing area AA is different from the thickness of non-display area BA, cause liquid crystal layer gap A1 between the two, A2 difference is large, also easily makes the liquid crystal molecule of viewing area AA and non-display area BA cannot insert perforation H fully, in H ', cause perforation H, produce bubble 20 in H ', and bubble 20 can cause the yield of display panels 10 and quality to decline, and affects display quality.
Summary of the invention
The object of the invention is to provide a kind of display panels, allow liquid crystal molecule easily spread and insert fully in perforation, reduce the possibility that the display panels surrounding with BOA substrate produces bubble, improve display quality, avoid having in the display panels of BOA substrate and produce bubble, cause yield and the Quality Down of display panels.
For reaching above-mentioned technical purpose, the invention provides a kind of display panels, comprising: array base palte, be configured with a viewing area and a non-display area, described viewing area comprises multiple driving component and a color light resistance layer; Subtend substrate, is arranged at above described array base palte; Frame glue, be arranged between described array base palte and described subtend substrate, described frame glue is surrounded on described non-display area; Liquid crystal layer, is configured between described array base palte and described subtend substrate; Black matrix layer, is arranged on described array base palte, and distributes corresponding to described viewing area and described non-display area; It is characterized in that, the described black matrix layer be at least distributed in described non-display area has a thickness and is less than or equal to 2 microns, by the thickness reducing described black matrix layer, reduces the degree of depth of perforation on described array base palte, to prevent from producing bubble in perforation.
According to display panels of the present invention, described black matrix layer comprises one first black matrix layer and one second black matrix layer, described first black matrix layer correspondence is formed at the viewing area of described array base palte, and described second black matrix layer correspondence is formed at the non-display area of described array base palte.
According to display panels of the present invention, be distributed in the described first black matrix layer in described non-display area and the described second black matrix layer be distributed in described viewing area all has the thickness being less than or equal to 2 microns.
According to display panels of the present invention, described array base palte has: a pixel electrode layer, is arranged on described color light resistance layer and the first black matrix; And at least one first perforation, run through described first black matrix and color light resistance layer, described pixel electrode layer is electrically connected at least one described driving component by described first perforation.。
According to display panels of the present invention, the non-display area of described array base palte has a peripheral circuit layer, described peripheral circuit layer is inwardly electrically connected described multiple driving component of described viewing area, and wherein said second black matrix layer correspondence is formed on described peripheral circuit layer.
According to display panels of the present invention, described array base palte has: multiple external weld pad, is formed in the second black matrix layer of described non-display area; And multiple second perforation, run through described second black matrix, described external weld pad is electrically connected described peripheral circuit layer by described second perforation.
According to display panels of the present invention, described subtend substrate is provided with an auxiliary light shield layer, and its second black matrix layer corresponding to described non-display area is arranged, and described auxiliary light shield layer contacts described frame glue.
According to display panels of the present invention, described subtend substrate is separately provided with multiple light spacer, and it corresponds to described first black matrix layer and arranges, the described first black matrix layer of described light spacer contact.
According to display panels of the present invention, described auxiliary light shield layer and light spacer are all made up of black photoresistance.
According to display panels of the present invention, the thickness of described auxiliary light shield layer is less than the thickness of described light spacer.
Accompanying drawing explanation
Fig. 1 is available liquid crystal display panel structure schematic diagram; And
Fig. 2 is the structure of liquid crystal display panel schematic diagram according to a preferred embodiment of the present invention.
Embodiment
The technical content and a detailed description for the present invention, now coordinate accompanying drawing to be described as follows:
Refer to Fig. 2, for a kind of structure of liquid crystal display panel schematic diagram of a preferred embodiment, the invention provides a kind of display panels 1, it belongs to BOA (BlackmatrixonArray, BOA) display panels of type, is namely all made in the technology on thin-film transistor array base-plate by color light resistance layer and black matrix.Described display panels 1 comprises: array base palte 2, is configured with the non-display area BA of a viewing area AA and around viewing area AA; Subtend substrate 3, is arranged at above described array base palte 2; Frame glue 4, is arranged between described array base palte 2 and described subtend substrate 3, and described frame glue ring 4 is around in described non-display area BA; Liquid crystal layer 5, is configured between described array base palte 2 and described subtend substrate 3, and by frame glue 4 institute around; Black matrix layer 6, is arranged on described array base palte 2, is configured between described array base palte 2 and described subtend substrate 3, and distributes corresponding to described viewing area AA and described non-display area BA; It is characterized in that, the described black matrix layer 6 be at least distributed in described non-display area BA has a thickness and is less than or equal to 2 microns.
The viewing area AA of described array base palte 2 comprises multiple driving component 201 and color light resistance layer 21.Described color light resistance layer 21 is arranged on described array base palte 2, forms so-called BOA substrate framework.And described color light resistance layer 21 comprises the photoresistance (R, G, B) of red, green, blue three kinds of colors of repeated arrangement successively.
Wherein, described black matrix layer 6 comprises one first black matrix layer 61 and one second black matrix layer 62, described first black matrix layer 61 correspondence is formed at the viewing area AA of described array base palte 2, and described second black matrix layer 62 correspondence is formed at the non-display area BA of described array base palte 2.Be distributed in the described first black matrix layer 61 in described viewing area AA and the described second black matrix layer 62 be distributed in described non-display area BA all has the thickness being less than or equal to 2 microns.
Further, described array base palte 2 has: a pixel electrode layer 22, is arranged on described color light resistance layer 21 and the first black matrix 61; And at least one first perforation H, run through described first black matrix 61 and color light resistance layer 21, described pixel electrode layer 22 is electrically connected at least one described driving component 201 by described first perforation H.The non-display area BA of described array base palte 2 has a peripheral circuit layer 23, and described peripheral circuit layer 23 is inwardly electrically connected described multiple driving components 201 of described viewing area AA, and wherein said second black matrix layer 62 correspondence is formed on described peripheral circuit layer 23.Described array base palte 2 has more: multiple external weld pad 24, is formed in the second black matrix layer 62 of described non-display area BA; And multiple second perforation H ', run through described second black matrix 62, described external weld pad 24 is electrically connected described peripheral circuit layer 23 by described second perforation H '.
In prior art, injection liquid crystal layer between array base palte and subtend substrate time, liquid crystal molecule diffuses in the process of viewing area, the black matrix stack thickness of existing BOA substrate viewing area is thicker, make the perforation degree of depth darker, add that the diffusion of liquid crystal molecule is slack-off gradually, be very easy to cause liquid crystal molecule in the perforation of viewing area to fill up, cause in perforation and produce bubble.And liquid crystal molecule is when diffusing to contiguous non-display area; often can face capillary force deficiency; add that the perforation H degree of depth is darker; cause liquid crystal molecule to insert fully in the contact perforation of the drain of pixel electrode and driving component, and easily in contact perforation, produce bubble (bubble).In addition, because the gap of array base palte between viewing area and subtend substrate is less than the gap of array base palte between non-display area and subtend substrate, the contact area in the space of liquid crystal molecule and non-display area expands, and then cause capillary force to decline, liquid crystal molecule cannot insert perforation in contact non-display area fully, and easily produces bubbles of vacuum at the perforation place of array base palte.
Therefore in order to effectively reduce the generation probability of bubble, the present invention reduces the thickness of described black matrix layer 6 for being less than or equal to 2 microns.When liquid crystal molecule spreads in described viewing area AA, black matrix layer 6 stack thickness of viewing area AA reduces, thus the degree of depth D2 of described first perforation H is reduced, namely the first perforation H degree of depth D2 shoals, in the present embodiment, described first perforation H degree of depth D2 can be less than perforation H degree of depth D1 in prior art, allows liquid crystal molecule easily be full of described first perforation H.Separately, when liquid crystal molecule spreads in described non-display area BA, black matrix layer 6 stack thickness of non-display area BA reduces, and equally also allows liquid crystal molecule be easier to be full of described second perforation H '.In addition, in liquid crystal molecule diffusion process, when liquid crystal molecule diffuses to described non-display area BA, its liquid crystal molecule changes with the contact area in the space of non-display area BA and reduces with can dramatically in diffusion process, larger capillary force can be provided to make non-display area BA and neighbouring liquid crystal layer 5 thereof, and then reduce the bubble formed when display panels 1 inserts liquid crystal layer 5, promote display quality.
But the thickness reducing described black matrix layer 6 can affect optical density (opticaldensity, the OD) value of described display panels 1, backlight transmitance namely can be made to uprise, easily cause periphery light leak, affect display quality.Therefore in another embodiment of the present invention, produce bubble for solving in perforation and avoid periphery leakage problem, further be provided with an auxiliary light shield layer 32 in described subtend substrate 3, its second black matrix layer 62 corresponding to described non-display area BA is arranged, and described auxiliary light shield layer 32 contacts described frame glue 4.In addition, described subtend substrate 3 is separately provided with multiple light spacer 31, and it corresponds to described first black matrix layer 61 and arranges, and described light spacer 31 contacts described first black matrix layer 61, and the thickness of described auxiliary light shield layer 32 is less than the thickness of described light spacer 3.In the present embodiment, described light spacer 31 is positioned at the relative top of the first black matrix layer 61 and gives prominence to towards array base palte 2, as shown in Figure 2.
Described light spacer 31 is all made up of black photoresistance with described auxiliary light shield layer 32, jointly can prevent light from passing through with described black matrix layer 6, and the gap A1 of described array base palte 2 between described viewing area AA and described subtend substrate 3 and the liquid crystal layer gap difference of the gap A2 of described array base palte 2 between described non-display area BA and described subtend substrate 3 can be reduced further, improve the mobility of liquid crystal.
In the present embodiment, the described first black matrix layer 61 distributed corresponding to viewing area AA is separated from one another, and the second black matrix layer 62 corresponding to non-display area BA distribution can around the first black matrix layer 61 distributed corresponding to viewing area AA.In detail, in the AA of viewing area, the first black matrix layer 61 corresponds to driving component, scanning linear, data line, storage capacitors distribution.
In sum, the invention provides a kind of display panels, by the black matrix layer thickness of reduction, the thickness of described black matrix layer is set smaller than or equals 2 microns, to reduce the perforation degree of depth, make liquid crystal molecule spread smoothly and to be full of perforation, reduce the possibility that bubble results from perforation.In addition, side light leakage is caused in order to avoid black matrix layer is excessively thin, light spacer and auxiliary light shield layer is provided with to improve the light-proofness of viewing area and non-display area in the described relatively black matrix layer place of subtend substrate inside surface, and the liquid crystal layer gap difference reduced between viewing area and non-display area, increase the diffusivity of liquid crystal, improve the mobility of liquid crystal, reduce the generation of bubble further.
Although the present invention with preferred embodiment openly as above; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (10)
1. a display panels, is characterized in that, comprising:
Array basal plate, is configured with a viewing area and a non-display area, and described viewing area comprises multiple driving component and a color light resistance layer;
One subtend substrate, is arranged at above described array base palte;
One frame glue, be arranged between described array base palte and described subtend substrate, described frame glue is surrounded on described non-display area;
One liquid crystal layer, is configured between described array base palte and described subtend substrate;
One black matrix layer, is arranged on described array base palte, and distributes corresponding to described viewing area and described non-display area;
It is characterized in that, the described black matrix layer be at least distributed in described non-display area has a thickness and is less than or equal to 2 microns.
2. display panels according to claim 1, it is characterized in that, described black matrix layer comprises one first black matrix layer and one second black matrix layer, described first black matrix layer correspondence is formed at the viewing area of described array base palte, and described second black matrix layer correspondence is formed at the non-display area of described array base palte.
3. display panels according to claim 2, is characterized in that, is distributed in the described first black matrix layer in described viewing area and the described second black matrix layer be distributed in described non-display area all has the thickness being less than or equal to 2 microns.
4. display panels according to claim 2, is characterized in that, described array base palte has: a pixel electrode layer, is arranged on described color light resistance layer and the first black matrix; And at least one first perforation, run through described first black matrix and color light resistance layer, described pixel electrode layer is electrically connected at least one described driving component by described first perforation.
5. display panels according to claim 2, it is characterized in that, the non-display area of described array base palte has a peripheral circuit layer, described peripheral circuit layer is inwardly electrically connected described multiple driving component of described viewing area, and wherein said second black matrix layer correspondence is formed on described peripheral circuit layer.
6. display panels according to claim 5, is characterized in that, described array base palte has: multiple external weld pad, is formed in the second black matrix layer of described non-display area; And multiple second perforation, run through described second black matrix, described external weld pad is electrically connected described peripheral circuit layer by described second perforation.
7. display panels according to claim 2, is characterized in that, described subtend substrate is provided with an auxiliary light shield layer, and its second black matrix layer corresponding to described non-display area is arranged, and described auxiliary light shield layer contacts described frame glue.
8. display panels according to claim 7, is characterized in that, described subtend substrate is separately provided with multiple light spacer, and it corresponds to described first black matrix layer and arranges, the described first black matrix layer of described light spacer contact.
9. display panels according to claim 8, is characterized in that, described auxiliary light shield layer and light spacer are all made up of black photoresistance.
10. display panels according to claim 8, is characterized in that, the thickness of described auxiliary light shield layer is less than the thickness of described light spacer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510865858.9A CN105372866B (en) | 2015-12-01 | 2015-12-01 | Liquid crystal display panel |
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|---|---|---|---|
| CN201510865858.9A CN105372866B (en) | 2015-12-01 | 2015-12-01 | Liquid crystal display panel |
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| CN105372866A true CN105372866A (en) | 2016-03-02 |
| CN105372866B CN105372866B (en) | 2019-01-15 |
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| CN201510865858.9A Active CN105372866B (en) | 2015-12-01 | 2015-12-01 | Liquid crystal display panel |
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| CN106200133A (en) * | 2016-09-12 | 2016-12-07 | 上海中航光电子有限公司 | Display panels |
| CN106842662A (en) * | 2016-12-29 | 2017-06-13 | 惠科股份有限公司 | A kind of display module and display |
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| CN108153076A (en) * | 2018-01-16 | 2018-06-12 | 武汉华星光电技术有限公司 | Liquid crystal display panel |
| CN108710242A (en) * | 2018-05-21 | 2018-10-26 | 惠科股份有限公司 | A kind of display panel and display device |
| WO2019037627A1 (en) * | 2017-08-25 | 2019-02-28 | 惠科股份有限公司 | Liquid crystal display panel and liquid crystal display apparatus |
| CN111341203A (en) * | 2019-06-25 | 2020-06-26 | 友达光电股份有限公司 | Display panel |
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| Publication number | Publication date |
|---|---|
| CN105372866B (en) | 2019-01-15 |
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